I am always looking for devices that help me with the stuff I am not strong enough to do. I am currently building a rock garden and moving and shifting huge rocks (up to 900 lbs) is definitely a bit of a challenge, even for the most able bodied folks! One device that has become invaluable in my efforts is a manual winch. I am sure there are other brands available, but the one I use is the POW'R-PULL by a company called Maasdam. All I do is attach it to whatever it is I'm dragging around, and the nearest strong tree. Then I pump the ratchet and voila! I even managed to reposition a 2700 lb. rock by myself (the company doesn't recommend this)! My husband thinks I'm nuts and should wait for his assistance! But when I'm ready to do stuff, he manages not to be around, and I am impatient!